CN103188455A - Backlight providing apparatus, display apparatus and controlling method thereof - Google Patents
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- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
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- H04N13/398—Synchronisation thereof; Control thereof
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
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- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
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Abstract
Description
Translated fromChinese相关申请的交叉引用Cross References to Related Applications
本申请要求2011年12月28日向韩国知识产权局提交的韩国专利申请No.10-2011-0145289、2011年12月30日向韩国知识产权局提交的韩国专利申请No.10-2011-0147327、以及2012年4月20日向韩国知识产权局提交的韩国专利申请No.10-2012-0041488的优先权，它们的公开内容通过引用结合于此。This application claims Korean Patent Application No. 10-2011-0145289 filed with the Korean Intellectual Property Office on December 28, 2011, Korean Patent Application No. 10-2011-0147327 filed with the Korean Intellectual Property Office on December 30, 2011, and Priority of Korean Patent Application No. 10-2012-0041488 filed with the Korean Intellectual Property Office on Apr. 20, 2012, the disclosures of which are incorporated herein by reference.
技术领域technical field
与示范性实施例相符的装置和方法涉及背光提供装置、显示装置、及其控制方法，并且更具体地，涉及针对多个内容提供背光的背光提供装置、显示装置、及其控制方法。Apparatus and methods consistent with exemplary embodiments relate to a backlight providing device, a display device, and a control method thereof, and more particularly, to a backlight providing device, a display device, and a control method thereof that provide backlight for a plurality of contents.
背景技术Background technique
随着电子技术的发展，已经开发出并提供了各种类型的电子产品。特别是各种显示装置，诸如电视机、移动电话、个人计算机（PC）、笔记本PC、以及个人数字助理（PDA）等，已经在家庭中被广泛地使用。With the development of electronic technology, various types of electronic products have been developed and provided. In particular, various display devices, such as televisions, mobile phones, personal computers (PCs), notebook PCs, and personal digital assistants (PDAs), have been widely used in homes.
随着这样的显示装置已经被广泛地使用，用户对各种功能的需求也已经提高。因此，制造商已经通过给产品提供新的功能，诸如提供三维（3D）内容，来努力满足这样的用户需求。As such display devices have been widely used, user demands for various functions have also increased. Therefore, manufacturers have tried to satisfy such user demands by providing new functions to products, such as providing three-dimensional (3D) contents.
在这个上下文中，已经开发了这样的显示装置，其能够通过同时提供多个内容，而使多个用户能够观看不同的内容。然而，在这种情况下，如果单一的信号处理单元被用于多个内容，如现有技术的显示装置那样，则可能在图像处理方面发生问题。In this context, display devices have been developed that enable a plurality of users to view different contents by simultaneously providing a plurality of contents. In this case, however, if a single signal processing unit is used for a plurality of contents, as in a related art display device, a problem may occur in image processing.
图1是示出具有单一信号处理单元的相关技术的显示装置的配置的框图。FIG. 1 is a block diagram showing the configuration of a related art display device having a single signal processing unit.
参考图1，显示装置10包括接收单元1、信号处理单元2、以及显示单元3。接收单元1接收内容，而信号处理单元2形成通过显示单元3显示的、关于所接收的内容的图像帧。Referring to FIG. 1 , a display device 10 includes a
为了显示同时提供的多个内容，显示单元3需要交替地布置多个内容的图像帧。然而，在信号处理单元2处理图像帧时，特别是，在转换内容的帧速率的过程中，相邻的内容可能彼此影响，从而阻止了最佳的图像处理。In order to display a plurality of contents provided at the same time, the display unit 3 needs to alternately arrange image frames of the plurality of contents. However, when the
具体地说，帧速率通过在连续的图像帧之间生成新的图像帧来转换，而新的图像帧通过内插来自先前的图像帧和下一个图像帧的每个相应的像素值、通过计算中间值来生成。在这个过程中，如果其他内容的图像帧存在于先前的图像帧和下一个图像帧中，则由于其他内容的图像帧的影响而不能生成最佳的图像帧。Specifically, the frame rate is converted by generating a new image frame between successive image frames, and the new image frame interpolates each corresponding pixel value from the previous image frame and the next image frame, by computing Intermediate values are generated. In this process, if image frames of other contents exist in the previous image frame and the next image frame, an optimal image frame cannot be generated due to the influence of the image frames of other contents.
此外，如果使用这样的显示装置同时提供多个内容，并且通过在同一时间分析多个图像帧来提供背光，如相关技术的显示装置那样，则由于在被执行用来逐渐地改变图像帧的亮度的滤光（filtering）过程中的相邻内容的图像帧的影响、而不能提供每个图像帧所要求的最佳亮度。Furthermore, if a plurality of contents are simultaneously provided using such a display device, and backlight is provided by analyzing a plurality of image frames at the same time, as in a display device of the related art, since the Influenced by image frames of adjacent content in the filtering process, it cannot provide the optimal brightness required by each image frame.
例如，如果通过单一图像分析单元处理包括白天图像和夜晚图像的内容A和内容B的图像帧，则包括白天图像的内容A的图像帧可能表现得比预期的更暗，因为其受到包括夜晚图像的相邻内容B的图像帧的影响，反之亦然。For example, if image frames of content A and content B including daytime images and nighttime images are processed by a single image analysis unit, the image frame of content A including daytime images may appear darker than expected because it is affected by The image frame of the adjacent content B is affected, and vice versa.
发明内容Contents of the invention
一个或多个示范性实施例及其控制方法向用户提供多个内容，所述实施例可以执行最佳图像处理而没有受到其他内容的任何影响。One or more exemplary embodiments and control methods thereof, which can perform optimal image processing without any influence from other contents, provide a user with a plurality of contents.
一个或多个示范性实施例还提供为多个内容中的每一个提供最佳亮度的背光的背光提供装置、其控制方法、以及包括这样的背光提供装置的显示装置。One or more exemplary embodiments also provide a backlight providing device that provides a backlight of optimum brightness for each of a plurality of contents, a control method thereof, and a display device including such a backlight providing device.
根据示范性实施例的一个方面，提供一种背光提供装置，包括：多个图像分析器，其对于多个内容视图中的每一个检测图像帧的亮度属性信息；光源，其向显示面板提供背光；背光驱动器，其驱动光源；以及控制器，其控制背光驱动器为多个内容视图中的每一个提供与所检测到的亮度属性信息相对应的背光。According to an aspect of an exemplary embodiment, there is provided a backlight providing device, including: a plurality of image analyzers that detect brightness attribute information of an image frame for each of a plurality of content views; a light source that provides backlight to a display panel a backlight driver driving a light source; and a controller controlling the backlight driver to provide each of the plurality of content views with a backlight corresponding to the detected brightness attribute information.
控制器可以使用各个图像帧的亮度属性信息确定多个内容视图中的每一个的占空比（duty ratio），并且可以根据所确定的占空比来控制背光驱动器以驱动光源。The controller may determine a duty ratio of each of the plurality of content views using brightness attribute information of the respective image frames, and may control the backlight driver to drive the light sources according to the determined duty ratio.
多个图像分析器中的每一个可以检测构成内容的各个图像帧的每个像素的平均亮度值作为亮度属性信息。Each of the plurality of image analyzers may detect an average luminance value of each pixel of each image frame constituting the content as luminance attribute information.
根据另一个示范性实施例的一个方面，提供一种用于控制背光提供装置的方法，该方法包括：对于由图像帧组合的多个内容，将多个内容中的每一个的图像帧划分为内容视图，并且检测各个内容视图的图像帧的亮度属性信息；并且为每个内容视图提供与所检测到的亮度属性信息相对应的背光。According to an aspect of another exemplary embodiment, there is provided a method for controlling a backlight providing device, the method including: for a plurality of contents combined by image frames, dividing an image frame of each of the plurality of contents into content view, and detecting the brightness attribute information of the image frame of each content view; and providing each content view with a backlight corresponding to the detected brightness attribute information.
提供背光可以包括：使用各个图像帧的亮度属性信息确定多个内容中的每一个的占空比；生成具有所确定的占空比的驱动信号；并且通过将驱动信号施加到背光单元来提供背光。Providing the backlight may include: determining a duty ratio of each of the plurality of contents using brightness attribute information of each image frame; generating a driving signal having the determined duty ratio; and providing the backlight by applying the driving signal to the backlight unit. .
图像帧的亮度属性信息可以包括构成图像帧的像素的平均亮度值。The brightness property information of the image frame may include an average brightness value of pixels constituting the image frame.
根据另一个示范性实施例的一个方面，提供一种显示装置，包括：多个接收器，其接收多个内容中各自的内容；多个信号处理器，其分别对应于接收器，每个信号处理器通过处理多个所接收的内容中对应的各自的内容来组成图像帧；多路复用器，其多路复用由信号处理器组成的图像帧；面板，其显示多路复用的图像帧；数据划分器，其将提供给面板的多个内容的图像帧划分为多个内容视图；多个图像分析器，其检测内容视图中各自的内容视图的图像帧的亮度属性信息；光源，其向面板提供背光；以及控制器，其控制背光与对应于各自的内容视图的图像帧的亮度属性信息的背光同步地显示多个内容视图中的每一个。According to an aspect of another exemplary embodiment, there is provided a display device, including: a plurality of receivers, which receive respective contents in a plurality of contents; a plurality of signal processors, which respectively correspond to the receivers, and each signal A processor composes an image frame by processing respective ones of a plurality of received contents; a multiplexer multiplexes the image frame composed of the signal processor; a panel displays the multiplexed an image frame; a data divider that divides image frames of a plurality of contents provided to the panel into a plurality of content views; a plurality of image analyzers that detect brightness attribute information of image frames of respective content views among the content views; light source , which provides a backlight to the panel; and a controller which controls the backlight to display each of the plurality of content views in synchronization with the backlight corresponding to the brightness attribute information of the image frame of the respective content view.
控制器可以使用各个图像帧的亮度属性信息确定多个内容视图中的每一个的占空比，并且可以根据所确定的占空比来控制背光驱动器以驱动光源。The controller may determine a duty cycle of each of the plurality of content views using brightness attribute information of respective image frames, and may control a backlight driver to drive the light sources according to the determined duty cycle.
多个图像分析器中的每一个可以检测构成内容的图像帧的每个像素的平均亮度值作为图像帧的亮度属性信息。Each of the plurality of image analyzers may detect an average luminance value of each pixel of an image frame constituting the content as luminance attribute information of the image frame.
多个信号处理器中的每一个可以包括：解码器，其对于包括在所接收的内容中的图像数据执行解码；缩放器，其对于所解码的图像数据执行缩放；以及帧速率转换器，其转换图像数据的帧速率。Each of the plurality of signal processors may include: a decoder performing decoding on image data included in the received content; a scaler performing scaling on the decoded image data; and a frame rate converter performing Converts the frame rate of the image data.
根据另一个示范性实施例的一个方面，提供用于向多个用户提供多个内容的显示方法，该方法包括：接收多个内容中的每一个；通过处理所接收的内容中的每一个来组成图像帧；并且组合所组成的图像帧并输出图像帧。According to an aspect of another exemplary embodiment, there is provided a display method for providing a plurality of contents to a plurality of users, the method including: receiving each of the plurality of contents; Composing the image frames; and combining the composed image frames and outputting the image frames.
组成图像帧可以包括：对于包括在所接收的内容中的图像数据执行解码；对于所解码的图像数据执行缩放；并且转换图像数据的帧速率。Composing the image frame may include: performing decoding on image data included in the received content; performing scaling on the decoded image data; and converting a frame rate of the image data.
附图说明Description of drawings
从以下对结合附图的示范性实施例的描述中，这些上述和/或其他方面将变得更加清楚和容易理解，在附图中：These above and/or other aspects will become clearer and easier to understand from the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:
图1是示出具有单一信号处理器的相关技术的显示装置的配置的框图；1 is a block diagram showing a configuration of a related art display device having a single signal processor;
图2A是解释根据示范性实施例的用于提供多个二维（2D）内容的方法的视图；FIG. 2A is a view explaining a method for providing a plurality of two-dimensional (2D) contents according to an exemplary embodiment;
图2B是解释根据示范性实施例的用于提供多个3D内容的方法的视图；FIG. 2B is a view explaining a method for providing a plurality of 3D contents according to an exemplary embodiment;
图3是示出根据示范性实施例的显示装置的框图；FIG. 3 is a block diagram illustrating a display device according to an exemplary embodiment;
图4是解释根据示范性实施例的信号处理器的具体配置的框图；4 is a block diagram explaining a specific configuration of a signal processor according to an exemplary embodiment;
图5是示出根据示范性实施例的背光提供装置的配置的框图；5 is a block diagram illustrating a configuration of a backlight providing device according to an exemplary embodiment;
图6是解释根据示范性实施例的多个图像分析器的操作的视图；FIG. 6 is a view explaining operations of a plurality of image analyzers according to an exemplary embodiment;
图7是解释根据示范性实施例的背光驱动器和控制器的操作的视图；FIG. 7 is a view explaining operations of a backlight driver and a controller according to an exemplary embodiment;
图8是示出根据示范性实施例的显示装置的配置的框图；FIG. 8 is a block diagram illustrating a configuration of a display device according to an exemplary embodiment;
图9是示出根据示范性实施例的用于控制显示装置的方法的流程图；以及FIG. 9 is a flowchart illustrating a method for controlling a display device according to an exemplary embodiment; and
图10是示出根据示范性实施例的用于提供背光的方法的流程图。FIG. 10 is a flowchart illustrating a method for providing a backlight according to an exemplary embodiment.
具体实施方式Detailed ways
现在将详细参考示范性实施例，其示例示出在附图中，其中相似的参考标号始终参考相似的元素。以下描述示范性实施例，以便通过参考附图解释本发明概念。Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The exemplary embodiments are described below in order to explain the inventive concept by referring to the figures.
图2A和图2B是示出根据示范性实施例的内容提供系统的配置的视图。如图2A和图2B中所示，内容提供系统包括显示装置100和眼镜（glasses）装置200。2A and 2B are views illustrating a configuration of a content providing system according to an exemplary embodiment. As shown in FIGS. 2A and 2B , the content providing system includes a
图2A是解释根据示范性实施例的用于提供多个2D内容的方法的视图。FIG. 2A is a view explaining a method for providing a plurality of 2D contents according to an exemplary embodiment.
显示装置100在多个内容视图（例如，内容视图1和内容视图2）上交替地显示多个2D内容（例如，内容A和内容B），并且生成和传送同步信号以便将对应的观众1的眼镜200-1和观众2的眼镜200-2与各自的内容视图1和内容视图2同步。The
在这种情况下，眼镜200-1可以进行操作，以便在显示内容A或内容B时打开（open）左快门（shutter）眼镜和右快门眼镜两者。因此，佩戴眼镜200-1的观众1可以只观看到在交替地显示的多个内容A和B中的、与眼镜1（200-1）同步的在视图A上显示的内容A。同样，佩戴眼镜200-2的观众2可以只观看到内容B。In this case, the glasses 200-1 may operate so as to open (open) both left shutter glasses and right shutter glasses when content A or content B is displayed. Accordingly, the
图2B是解释根据示范性实施例的用于提供多个3D内容的方法的视图。FIG. 2B is a view explaining a method for providing a plurality of 3D contents according to an exemplary embodiment.
如图2B中所示，如果多个3D内容（内容A和内容B）是3D内容，则显示装置100可以在交替地显示多个3D内容时显示每个3D内容的左眼图像和右眼图像。As shown in FIG. 2B , if a plurality of 3D contents (content A and content B) are 3D contents, the
例如，显示装置100可以交替地显示3D内容A的左眼图像AL和右眼图像AR、以及显示3D内容B的左眼图像BL和右眼图像BR。在这种情况下，与内容视图1同步的眼镜200-1可以在3D内容A的左眼图像AL被显示时打开左眼镜片（glass），而在3D内容A的右眼图像AR被显示时打开右眼镜片，并且与3D内容视图2同步的眼镜200-2可以在3D内容B的左眼图像BL被显示时打开左眼镜片，而在3D内容B的右眼图像BR被显示时打开右眼镜片。For example, the
因此，佩戴眼镜200-1的观众1只观看到3D内容A，而佩戴眼镜200-2的观众2只观看到3D内容B。Therefore, the
这里，内容视图表示单一内容的一组图像帧，当每个内容的图像帧被交替地布置和显示时，可以由佩戴眼镜装置的观众观看。然而，内容视图不同于每个内容。例如，如果佩戴与内容视图1同步的眼镜200-1的观众1在观看内容A时改变电视频道，或者通过再现其他的DVD内容来观看内容C，则内容A被改变到C，但是内容视图1不改变。也就是说，内容视图是比内容更高级的概念，并且是一种用于观看内容的频道。Here, the content view means a group of image frames of a single content that can be viewed by a viewer wearing the glasses device when the image frames of each content are alternately arranged and displayed. However, the content view is different for each content. For example, if
显示装置100和眼镜装置200可以使用各种无线通信技术执行通信，诸如Wifi、蓝牙、红外数据关联（IRDA）、射频（RF）、IEEE802.11、WLAN、HR WPAN、UWB、以及LR WPAN。The
图3是示出根据示范性实施例的显示装置的框图。FIG. 3 is a block diagram illustrating a display device according to an exemplary embodiment.
根据图3，显示装置100包括多个接收器110-1、110-2、……110-n，多个信号处理器120-1、120-2、……、120-n，以及显示器130。显示装置100可以实现为具有显示器的各种装置，诸如，电视机、移动电话、PDA、笔记本PC、监视器、平板PC、电子书、电子相框、以及信息亭。According to FIG. 3 , the
多个接收器100-、110-2、……、110-n分别接收多个内容。具体地说，每个接收器110-1、110-2、……、110-n从使用广播网络传送广播节目内容的广播电台或从使用互联网传送内容文件的网络服务器接收内容。此外，显示装置100可以从在显示装置100之内的或者连接到显示装置100的各种记录介质再现装置接收内容。记录介质再现装置是指再现存储在各种类型的记录介质中的内容的装置，例如，CD、DVD、硬盘、蓝光盘、存储卡、USB存储器、等等。The plurality of receivers 100-, 110-2, ..., 110-n respectively receive a plurality of contents. Specifically, each receiver 110-1, 110-2, ..., 110-n receives content from a broadcast station that transmits broadcast program content using a broadcast network or from a web server that transmits content files using the Internet. In addition, the
在从广播电台接收内容的情况下，多个接收器110-1、110-2、……、110-n可以被配置为包括调谐器（未示出）、解调器（未示出）、以及均衡器（未示出）。替换地，在从诸如网络服务器的源接收内容的情况下，多个接收器110-1、110-2、……、110-n可以实现为网络接口卡（未示出）。在从各种类型的记录介质再现装置接收内容的情况下，多个接收器110-1、110-2、……、110-n可以实现为物理地和/或电连接到记录介质再现装置的接口单元（未示出）。同样，多个接收器110-1、110-2、……、110-n可以根据示范性实施例而实现为各种形式。In the case of receiving content from a broadcast station, the plurality of receivers 110-1, 110-2, ..., 110-n may be configured to include a tuner (not shown), a demodulator (not shown), and an equalizer (not shown). Alternatively, the plurality of receivers 110-1, 110-2, ..., 110-n may be implemented as a network interface card (not shown) in case of receiving content from a source such as a web server. In the case of receiving content from various types of recording medium reproducing devices, the plurality of receivers 110-1, 110-2, ..., 110-n may be implemented as physically and/or electrically connected to the recording medium reproducing device interface unit (not shown). Also, the plurality of receivers 110-1, 110-2, ..., 110-n may be implemented in various forms according to an exemplary embodiment.
多个接收器110-1、110-2、……、110-n不必从相同类型的源接收内容，并且可以从不同类型的源接收内容。例如，接收器1（110-1）可以被配置为包括调谐器、解调器、以及均衡器，而接收器2（110-2）可以实现为网络接口卡。The multiple receivers 110-1, 110-2, ..., 110-n do not necessarily receive content from the same type of source, and may receive content from different types of sources. For example, receiver 1 (110-1) may be configured to include a tuner, a demodulator, and an equalizer, and receiver 2 (110-2) may be implemented as a network interface card.
多个信号处理器120-1、120-2、……、120-n可以通过分别处理所接收到的内容组成图像帧。将参考图4更详细地解释信号处理器120。A plurality of signal processors 120-1, 120-2, . . . , 120-n may compose an image frame by processing received contents respectively. The
图4是解释根据示范性实施例的信号处理器的具体配置的框图。FIG. 4 is a block diagram explaining a specific configuration of a signal processor according to an exemplary embodiment.
如图4中所示，信号处理器1（120-1）包括解码器1（121-1）、缩放器单元（122-1）、以及帧速率转换器1（123-1）。虽然在图2中仅示出了一个信号处理器1（120-1），但是其他信号处理器120-1、……、120-n可以实现为具有与图4中所示相同的配置。As shown in FIG. 4 , the signal processor 1 ( 120 - 1 ) includes a decoder 1 ( 121 - 1 ), a scaler unit ( 122 - 1 ), and a frame rate converter 1 ( 123 - 1 ). Although only one signal processor 1 ( 120 - 1 ) is shown in FIG. 2 , other signal processors 120 - 1 , . . . , 120 - n may be implemented to have the same configuration as shown in FIG. 4 .
解码器1（121-1）对于包括在从接收器1（110-1）接收到的内容中的图像数据执行解码。缩放器单元1（122-1）对于所解码的图像数据执行缩放。具体地说，缩放器单元1（122-1）可以根据显示器130的屏幕尺寸执行放大或缩小。The decoder 1 (121-1) performs decoding on image data included in the content received from the receiver 1 (110-1). The sealer unit 1 (122-1) performs scaling on the decoded image data. Specifically, the scaler unit 1 ( 122 - 1 ) may perform enlargement or reduction according to the screen size of the
帧速率转换器1（123-1）转换由缩放器单元1（122-1）提供的内容的帧速率以适合显示装置100的输出速率。例如，如果显示装置100以单一视图形式操作在60赫兹（Hz），则帧速率转换器1（123-1）可以将每个内容的帧速率转换为60Hz，以便与单一视图模式的帧速率相一致。如果在多视图模式中内容的数目为‘n’，则显示装置100以n*60Hz的输出速率进行操作。The frame rate converter 1 ( 123 - 1 ) converts the frame rate of the content provided by the scaler unit 1 ( 122 - 1 ) to fit the output rate of the
转换帧速率的方法与在一般显示装置中使用的相同，并且为本领域技术人员所知。因此，将仅仅简要地解释该方法。The method of converting the frame rate is the same as that used in general display devices, and is known to those skilled in the art. Therefore, this method will only be briefly explained.
一般，电影胶片具有24Hz的帧速率。为了在具有60Hz的输出速率的显示装置中输出这个电影胶片，执行2-3下拉（pull down）。2-3下拉表示将电影胶片的两个图像帧转换为2个图像帧和3个图像帧，即，5个图像帧。Typically, motion picture film has a frame rate of 24 Hz. To output this film footage in a display device with an output rate of 60 Hz, a 2-3 pull down is performed. The 2-3 pulldown means converting two image frames of the film into 2 image frames and 3 image frames, ie, 5 image frames.
通过内插已有的图像帧可以生成新的图像帧。如上所述，如果使用单一信号处理器执行上述处理，则对于不同的内容执行内插，因此不能生成具有适当值的新的图像帧。然而，如果使用不同的信号处理器处理所接收到的内容，则帧速率转换可以通过生成适当的图像帧来执行而没有受到其他内容的影响。New image frames can be generated by interpolating existing image frames. As described above, if the above-described processing is performed using a single signal processor, interpolation is performed for different contents, and thus a new image frame with an appropriate value cannot be generated. However, if a different signal processor is used to process the received content, frame rate conversion can be performed by generating appropriate image frames without being affected by the other content.
回到图4，信号处理器1（120-1）可以转换图像数据以具有对应于帧速率转换器1（123-1）的图像格式。具体地说，如果输入图像数据具有从上-下（top-to-bottom）格式，而帧速率转换器1（122-1）具有并排（side-by-side）格式来处理帧，则信号处理器1（121-1）可以通过以沿水平方向连接每个内容的图像帧来转换图像数据以具有并排的格式。Returning to FIG. 4 , the signal processor 1 ( 120 - 1 ) may convert image data to have an image format corresponding to the frame rate converter 1 ( 123 - 1 ). Specifically, if the input image data has a top-to-bottom format and the frame rate converter 1 (122-1) has a side-by-side format to process frames, the signal processing The processor 1 (121-1) may convert image data to have a side-by-side format by connecting image frames of each content in a horizontal direction.
显示器130组合并显示由多个信号处理器120-1、120-2、……、120-n组成的每个内容的图像帧。具体地说，显示器130多路复用并显示由多个信号处理器120-1、120-2、……、120-n提供的每个内容的图像帧，从而图像帧中的至少一个被交替地布置。在一些情况下，显示器130可以根据用于每个内容的图像帧的屏幕尺寸执行放大或缩小。The
例如，如果显示装置使用快门眼镜方法，则显示器130显示图像帧，从而第一内容的图像帧、第二内容的图像帧、以及第n内容的图像帧中的至少一个被交替地布置。用户佩戴与内容被显示在显示器130上的时间联锁的（interlocked）眼镜装置200以观看期望的内容。具体地说，眼镜装置200包括左眼快门眼镜和右眼快门眼镜。左眼快门眼镜和右眼快门眼镜在观看3D内容时交替地打开/关闭。然而，如上所述，当观看到其中每个图像帧中的至少一个被交替地布置的一帧2D图像时，左眼快门眼镜和右眼快门眼镜根据与眼镜装置同步的内容的输出定时一起打开/关闭。因此，用户可以与其他用户独立地观看2D内容。For example, if the display device uses the shutter glasses method, the
如上所述，每个内容的帧图像被交替地布置和显示的模式可以被称为多视图模式（或双视图模式）。在显示2D内容和3D内容之一的一般模式（或单一视图模式）中，显示装置100可以通过仅激活多个接收器110-1、110-2、……、110-n之一来处理内容。如果用户在一般模式中选择多视图模式，则显示装置100可以如上所述通过激活其他接收器来处理数据。As described above, a mode in which frame images of each content are alternately arranged and displayed may be referred to as a multi-view mode (or a dual-view mode). In a general mode (or single view mode) displaying one of 2D content and 3D content, the
上述内容可以是2D内容或3D内容。3D内容通过使用从不同的角度表现同一对象的多个图像来表现向用户提供立体感的内容。The above content may be 2D content or 3D content. 3D content expresses content that provides a user with a sense of three-dimensionality by using a plurality of images expressing the same object from different angles.
如果使用了多个3D内容，则显示器130可以以预定的布置形式多路复用由多个帧速率转换器（122-1、122-2、……、122-n）提供的每个3D内容中包括的左眼图像和右眼图像，从而它们被相对于其它内容的图像帧交替地布置。If multiple 3D contents are used, the
因此，第一内容的左眼图像、第一内容的右眼图像、第二内容的左眼图像、第二内容的右眼图像、……、第n内容的左眼图像、第n内容的右眼图像被交替地布置和显示，并且用户通过眼镜装置200识别一个内容的左眼图像和右眼图像。Therefore, the left eye image of the first content, the right eye image of the first content, the left eye image of the second content, the right eye image of the second content, ..., the left eye image of the nth content, the right eye image of the nth content The eye images are alternately arranged and displayed, and the user recognizes a left-eye image and a right-eye image of one content through the glasses device 200 .
虽然在图3中未示出，但是显示装置100还包括这样的配置，其中在多视图模式中为每个用户不同地提供包括在每个内容中的音频数据。也就是说，显示装置100还可以包括：多路分离器（de-multiplexer）（未示出），用于从每个接收器110-1、110-2、……、110-n接收的内容中分离（separating）图像数据和音频数据；音频解码器（未示出），用于解码分离的音频数据；调制器（未示出），用于将每个解码的音频数据调制到不同的频率信号；以及单元（未示出），用于将每个调制的音频传送到眼镜装置。从输出单元输出的每个音频数据通过诸如眼镜装置中的耳机或扬声器的输出单元被提供给用户。Although not shown in FIG. 3 , the
此外，显示装置100还可以不仅包括多个接收器110-1、110-2、……、110-n、多个信号处理器120-1、120-2、……、120-n、显示器190，而且还包括控制器（未示出）、同步信号生成器（未示出）、以及接口（未示出）。In addition, the
控制器（未示出）控制显示装置100的总体操作。也就是说，控制器可以控制多个接收器110-1、110-2、……、110-n、多个信号处理器120-1、120-2、……、120-n、显示器130、同步信号生成器、以及接口，以执行相应的操作。A controller (not shown) controls overall operations of the
同步信号生成器（未示出）生成同步信号，该同步信号根据每个内容的显示定时同步与每个内容相对应的眼镜装置。也就是说，同步信号生成器生成同步信号以便在多视图模式中显示每个内容的图像帧时打开眼镜装置的快门眼镜。A synchronization signal generator (not shown) generates a synchronization signal that synchronizes the glasses devices corresponding to each content according to the display timing of each content. That is, the sync signal generator generates a sync signal to open shutter glasses of the glass apparatus when displaying an image frame of each content in a multi-view mode.
接口（未示出）执行与眼镜装置的通信。在这种情况下，接口可以根据各种无线方法执行与眼镜装置的通信，并将同步信号传送到眼镜装置。An interface (not shown) performs communication with the glasses device. In this case, the interface may perform communication with the glasses device according to various wireless methods, and transmit a synchronization signal to the glasses device.
例如，接口包括蓝牙通信模块以执行与眼镜装置的通信，并且可以根据蓝牙通信标准生成同步信号作为传输流并将同步信号传送到眼镜装置。For example, the interface includes a Bluetooth communication module to perform communication with the glasses device, and may generate a synchronization signal as a transport stream according to Bluetooth communication standards and transmit the synchronization signal to the glasses device.
传输流包括用于通过与内容的显示定时同步来打开/关闭眼镜装置的快门眼镜的时间信息。具体地说，时间信息包括关于用于左快门打开偏移、左快门关闭偏移、右快门打开偏移、以及右快门关闭偏移的时间的信息。The transport stream includes time information for turning on/off the shutter glasses of the glasses device by synchronizing with the display timing of the content. Specifically, the time information includes information on times for the left shutter opening offset, the left shutter closing offset, the right shutter opening offset, and the right shutter closing offset.
偏移时间是从为每个内容设定的参考时间点到快门眼镜的打开/关闭时间点的时间延迟的信息。也就是说，如果从参考时间点经过了偏移时间，则眼镜装置打开/关闭左眼快门眼镜和右眼快门眼镜。The offset time is information of a time delay from a reference time point set for each content to an opening/closing time point of the shutter glasses. That is, if the offset time has elapsed from the reference time point, the glasses device turns on/off the left-eye shutter glasses and the right-eye shutter glasses.
例如，参考时间点可以是垂直同步信号（也就是说，帧同步）在图像帧中生成的时间点，而关于参考时间点的信息可以包括在传输流中。此外，传输流可以包括关于在显示装置100中使用的时钟信号的信息。因此，如果接收到传输流，则眼镜装置可以将其自己的时钟信号与显示装置100的时钟信号同步，并确定从使用时钟信号生成垂直同步信号的时间点是否经过了偏移时间来打开/关闭快门眼镜。For example, the reference time point may be a time point at which a vertical synchronization signal (that is, frame synchronization) is generated in an image frame, and information on the reference time point may be included in the transport stream. Also, the transport stream may include information on a clock signal used in the
此外，传输流还可以包括关于帧同步的频率以及帧同步的频率是否具有小数点的信息、关于小数点的信息。In addition, the transport stream may also include information on the frequency of the frame synchronization and whether the frequency of the frame synchronization has a decimal point, information on the decimal point.
接口通过向眼镜装置传送蓝牙设备地址和pin码/从眼镜装置接收蓝牙设备地址和pin码来执行根据蓝牙通信方法的配对（pairing）。The interface performs pairing according to the Bluetooth communication method by transmitting/receiving the Bluetooth device address and the pin code to/from the glasses device.
一旦完成配对，接口可以注册关于眼镜装置的信息，诸如关于眼镜装置的识别信息。接口将关于每个眼镜装置的信息与对应于每个内容的显示定时的传输流进行匹配，并且基于通过削减获得的信息将传输流传送到每个眼镜装置。Once the pairing is completed, the interface may register information on the glasses device, such as identification information on the glasses device. The interface matches the information on each glasses device with the transport stream corresponding to the display timing of each content, and sends the transport stream to each glasses device based on the information obtained by clipping.
一旦接收到传输流，眼镜装置检查传输流是否对应于眼镜装置的信息，并且可以基于包括在传输流中的时间信息打开或关闭眼镜。Upon receiving the transport stream, the glasses device checks whether the transport stream corresponds to information of the glasses device, and may turn on or off the glasses based on time information included in the transport stream.
在上述示范性实施例中，接口和眼镜装置根据蓝牙通信方法执行通信，但是这仅仅是一个示例。也就是说，不只蓝牙方法，而且诸如红外线通信和Zigbee的其他通信方法也可以被使用，并且可以根据通过形成短距通信信道来启用信号的传送/接收的各种通信方法来执行通信。In the above-described exemplary embodiments, the interface and the glasses device perform communication according to the Bluetooth communication method, but this is only an example. That is, not only the Bluetooth method but also other communication methods such as infrared communication and Zigbee can be used, and communication can be performed according to various communication methods enabling transmission/reception of signals by forming a short-distance communication channel.
根据上述示范性实施例，即使多个用户观看多个内容，每个内容的图像可以被最佳地处理，而没有受到其它内容的任何影响，并且因此用户可以观看最佳的图像。According to the above-described exemplary embodiments, even if a plurality of users views a plurality of contents, an image of each content can be optimally processed without any influence of other contents, and thus users can view an optimal image.
在根据上述示范性实施例同时地提供多个内容的情况下，如果通过同时分析多个图像帧来提供背光，则执行滤光来逐渐地改变每个图像帧的亮度。在这种情况下，由于在滤光处理期间受到相邻内容的图像帧的影响，很难达成对于每个图像帧的最佳亮度。根据示范性实施例的背光提供装置被构思以解决这样的缺点。In case of simultaneously providing a plurality of contents according to the above-described exemplary embodiments, if backlight is provided by simultaneously analyzing a plurality of image frames, filtering is performed to gradually change the brightness of each image frame. In this case, it is difficult to achieve optimum brightness for each image frame due to the influence of image frames of adjacent content during the filtering process. A backlight providing device according to an exemplary embodiment is conceived to solve such disadvantages.
图5是示出根据示范性实施例的背光提供装置的配置的框图。FIG. 5 is a block diagram illustrating a configuration of a backlight providing device according to an exemplary embodiment.
根据图5，背光提供装置300包括多个图像分析器310-1、310-2、……、310-n、光源320、背光驱动器330、以及背光控制器340。According to FIG. 5 , the
多个图像分析器310-1、310-2、……、310-n对于每个内容视图检测图像帧的亮度属性信息。具体地说，图像分析器310-1、310-2、……、310-n中的每一个接收为每个内容视图划分的图像帧，并且检测对于所接收到的图像帧的亮度属性信息。因此，图像分析器的数量可以根据所显示的内容视图的数量而不同。The plurality of image analyzers 310-1, 310-2, ..., 310-n detect brightness attribute information of an image frame for each content view. Specifically, each of the image analyzers 310-1, 310-2, . . . , 310-n receives image frames divided for each content view, and detects brightness attribute information for the received image frames. Therefore, the number of image analyzers may vary depending on the number of content views displayed.
多个图像分析器310-1、310-2、……、310-n可以检测构成内容的图像帧的每个像素的平均亮度值作为亮度属性信息。平均亮度值表示每个像素的平均亮度值。The plurality of image analyzers 310-1, 310-2, ..., 310-n may detect an average luminance value of each pixel of an image frame constituting content as luminance attribute information. The average luminance value represents the average luminance value of each pixel.
亮度属性信息并不限于平均亮度值，而可以是各种值，诸如每个像素的亮度值当中的最大值、最小值、中间值、以及模式。The luminance attribute information is not limited to an average luminance value, but may be various values such as a maximum value, a minimum value, an intermediate value, and a mode among luminance values of each pixel.
此外，图像分析器310-1、310-2、……、310-n中的每一个可以包括滤光器（未示出），滤光器对背光进行滤光，从而提供给每个图像帧的背光被逐渐地改变。包括在图像分析器310-1、310-2、……、310-n中的每一个中的滤光器（未示出）可以执行滤光，而没有受到其他内容视图的图像帧的任何影响。In addition, each of the image analyzers 310-1, 310-2, ..., 310-n may include a filter (not shown) that filters the backlight to provide each image frame The backlight is gradually changed. A filter (not shown) included in each of the image analyzers 310-1, 310-2, . . . , 310-n can perform light filtering without any influence from image frames of other content views .
光源320向显示面板（未示出）提供背光。例如，光源320可以实现为发光二极管（LED-BLU）、冷阴极荧光灯（Cold Cathode Fluorescence Lamp，CCFL）、或外部电极荧光灯（External Electrode Fluorescence Lamp，EEFL）。The
光源320从显示面板（未示出）的相对侧向显示面板（未示出）提供背光，显示面板（未示出）的相对侧即显示图像的一侧的相对侧。The
背光驱动器330在背光控制器340的控制下驱动光源320。具体地说，背光驱动器330通过在背光控制器340的控制下生成驱动信号来驱动光源320。可以生成驱动信号，从而可以在调整光源320的开启和关闭时间时改变屏幕的亮度。The
背光控制器340控制背光驱动器330。背光控制器340控制背光驱动器330，从而为多个内容视图中的每一个提供对应于由多个图像分析器310-1、310-2、……、310-n检测的每个图像帧的亮度属性信息的背光。The
此外，背光控制器340可以控制背光提供装置300的总体操作。具体地说，控制器340可以控制多个图像分析器310-1、310-2、……、310-n和背光驱动器330中的每一个，从而可以执行相应的操作。In addition, the
此外，背光控制器340使用每个图像帧的亮度属性信息确定多个内容视图中的每一个的占空比，并根据确定的占空比控制背光驱动器330将驱动信号施加到光源单元。In addition, the
例如，如果每个检测的图像的亮度属性信息具有较高值，则可以设定较高的占空比。当设定较高的占空比时，提供给相应的图像帧的背光驱动时间变得更长，并且因此，用户可以观看到更亮的图像帧。另一方面，如果每个检测的图像的亮度属性信息具有较低值，则可以设定较低的占空比。当设定较低的占空比时，提供给相应的图像帧的背光驱动时间变得更短，并且因此，用户可以观看到更暗的图像帧。For example, if the luminance attribute information of each detected image has a higher value, a higher duty ratio may be set. When a higher duty ratio is set, the backlight driving time provided to the corresponding image frame becomes longer, and thus, the user can view brighter image frames. On the other hand, if the luminance attribute information of each detected image has a lower value, a lower duty ratio can be set. When the duty ratio is set lower, the driving time of the backlight provided to the corresponding image frame becomes shorter, and thus, the user can view the darker image frame.
占空比表示时间比（time ratio），该时间比指示对于脉冲信号的周期、在其期间电流流动的时间对在其期间电流不流动的时间。也就是说，在表现为脉冲信号的驱动信号的情况下，一个周期的脉冲信号是用于输出一个图像帧的时间，而时间比指示在输出一个图像帧时用于关闭光源的时间对用于开启光源的时间。The duty ratio indicates a time ratio indicating a time during which current flows versus a time during which current does not flow with respect to a period of the pulse signal. That is, in the case of a driving signal expressed as a pulse signal, one cycle of the pulse signal is the time for outputting one image frame, and the time ratio indicates the time for turning off the light source when outputting one image frame versus the time for outputting one image frame. The time to turn on the light source.
将参考图6和图7更详细地解释根据示范性实施例的背光提供装置。A backlight providing device according to an exemplary embodiment will be explained in more detail with reference to FIGS. 6 and 7 .
图6是解释根据示范性实施例的多个图像分析器的操作的视图。FIG. 6 is a view explaining operations of a plurality of image analyzers according to an exemplary embodiment.
参考图6，对应于白天图像和夜晚图像的内容被分别显示在内容视图1和内容视图2上。在这个示范性实施例中，作为示例，将只解释多个图像分析器310-1、310-2、……、310-n中的图像分析器1（310-1）和图像分析器2（310-2），因为在这个示范性实施例中只有两个内容视图。然而，内容视图的数量并非特别限定的。与显示在内容视图1上的白天图像相对应的内容的图像帧被输入到图像分析器1（310-1），而与显示在内容视图2上的夜晚图像相对应的内容的图像帧被输入到图像分析器2（310-2）。Referring to FIG. 6, contents corresponding to daytime images and nighttime images are displayed on
图像分析器1（310-1）和图像分析器2（310-2）检测内容的输入图像帧中的每一个的亮度属性信息。如上所述，亮度属性信息可以是每个像素的亮度值当中的平均值，最大值、最小值、中间值、或模式。在这个示范性实施例中，为了方便解释，假定亮度属性信息为平均亮度值。The image analyzer 1 ( 310 - 1 ) and the image analyzer 2 ( 310 - 2 ) detect brightness attribute information of each of the input image frames of the content. As described above, the luminance attribute information may be an average value, a maximum value, a minimum value, an intermediate value, or a mode among luminance values of each pixel. In this exemplary embodiment, for convenience of explanation, it is assumed that the luminance attribute information is an average luminance value.
图像分析器1（310-1）从对应于白天图像的内容的图像帧中检测每个像素的亮度值，并且使用每个像素的亮度值检测平均亮度值。如图6中所示，对应于白天图像的图像帧的平均亮度值可以高于对应于夜晚图像的图像帧的平均亮度值。The image analyzer 1 ( 310 - 1 ) detects a luminance value of each pixel from an image frame corresponding to content of a daytime image, and detects an average luminance value using the luminance value of each pixel. As shown in FIG. 6 , the average luminance value of image frames corresponding to daytime images may be higher than the average luminance value of image frames corresponding to nighttime images.
图像分析器2（310-2）从对应于夜晚图像的内容的图像帧中检测每个像素的亮度值，并且使用每个像素的亮度值检测平均亮度值。如图6中所示，对应于夜晚图像的图像帧的平均亮度值可以低于对应于白天图像的图像帧的平均亮度值。The image analyzer 2 ( 310 - 2 ) detects a luminance value of each pixel from the image frame corresponding to the content of the night image, and detects an average luminance value using the luminance value of each pixel. As shown in FIG. 6 , the average luminance value of image frames corresponding to nighttime images may be lower than the average luminance value of image frames corresponding to daytime images.
图7是解释根据示范性实施例的背光驱动器和控制器的操作的视图。FIG. 7 is a view explaining operations of a backlight driver and a controller according to an exemplary embodiment.
背光控制器340使用分别从图像分析器1（310-1）和图像分析器2（310-2）检测的平均亮度值确定每个内容（即，内容视图1和内容视图2）的每个图像帧的占空比。如图7中所示，内容视图1的每个图像帧具有较高的平均亮度值，并因此可以确定为具有相对较高的占空比2:1，而内容视图2的每个图像帧具有较低的平均亮度值，并因此可以确定为具有相对较低的占空比0.5:1。The
一旦确定了占空比，则背光控制器340控制背光驱动器330以便根据所确定的占空比生成驱动信号。具体地说，背光控制器340可以根据所确定的每个图像帧的占空比控制背光驱动器330，根据将要显示在内容视图1和内容视图2上的内容的每个图像帧的显示定时来生成驱动信号以驱动光源。图7的驱动信号表示根据所确定的占空比生成的驱动信号。可以看出，对应于将要显示在内容视图1上的图像帧的部分（section）具有较高的占空比，而对应于将要显示在内容视图2上的图像帧的部分具有较低的占空比。Once the duty ratio is determined, the
背光驱动器330在背光控制器340的控制下向光源320施加驱动信号，而光源320根据驱动信号按照每个图像帧的显示定时向显示面板（未示出）提供背光。因此，如图7中所示，显示在显示屏（未示出）的内容视图1上的图像帧被显示得更亮，而显示在内容视图2上的内容的图像帧被显示得更暗。The
因此，如果交替地布置和显示多个内容的图像帧，则每个内容的图像帧可以以最佳的亮度显示，而没有受到其他内容的图像帧的任何影响。Therefore, if image frames of a plurality of contents are alternately arranged and displayed, each image frame of contents can be displayed with optimum brightness without any influence of image frames of other contents.
背光提供装置300可以包括在显示装置10中然后被操作，并且可以向显示装置100的显示面板（未示出）提供背光。将参考图8解释包括在背光提供装置300中的显示装置100。The
图8是示出根据另一个示范性实施例的显示装置的配置的框图。由于已经参考图3详细解释了显示装置的配置，所以解释将集中在图3的配置与图8的配置之间的差异。FIG. 8 is a block diagram illustrating a configuration of a display device according to another exemplary embodiment. Since the configuration of the display device has been explained in detail with reference to FIG. 3 , the explanation will focus on the difference between the configuration of FIG. 3 and the configuration of FIG. 8 .
根据图8，显示装置100包括多个接收器110-1、110-2、……、110-n、多个信号处理器120-1、120-2、……、120-n、多路复用器190、面板140、数据划分器150、多个图像分析器160-1、160-2、……、160-n、背光170、以及背光控制器180。显示装置100可以实现为各种设备，诸如电视机、移动电话、PDA、笔记本PC、监视器、平板PC、电子书、电子相框、以及信息亭。According to FIG. 8, the
多路复用器190对多个内容的图像帧进行多路复用。具体地说，多路复用器190可以多路复用并输出将要逐一地交替布置的图像帧，以使得由信号处理器组成的多个内容的图像帧可以被至少逐一地交替布置。The
面板140显示多路复用的图像帧。因此，面板140可以显示图像帧，以使得由多路复用器190多路复用和输出的图像帧可以被至少逐一地交替布置。The
同时，面板140可以包括：显示面板，包括多个像素以显示图像帧；和面板驱动器（未示出），用于在背光控制器180的控制下驱动显示面板。Meanwhile, the
数据划分器150对于每个内容视图划分由多路复用器190多路复用的图像帧。也就是说，数据划分器150可以接收提供给面板单元140的多个内容的图像帧，划分用于内容视图的每个内容的图像帧，并将划分的图像帧输出给图像分析器160-1、160-2、……、160-n中的每一个。The
多个图像分析器160-1、160-2、……、160-n检测对于内容视图划分的每个图像帧的亮度属性信息。多个图像分析器160-1、160-2、……、160-n对应于多个图像分析器310-1、310-2、……、310-n，并且因此，将不提供进一步的解释。The plurality of image analyzers 160-1, 160-2, ..., 160-n detect brightness attribute information for each image frame divided by the content view. The plurality of image analyzers 160-1, 160-2, ..., 160-n correspond to the plurality of image analyzers 310-1, 310-2, ..., 310-n, and therefore, no further explanation will be provided .
背光170向面板140提供背光。具体地说，背光170可以向面板140的显示面板（未示出）提供背光。The
背光170可以包括：光源（未示出），用于向显示面板（未示出）提供背光；和背光驱动器（未示出），用于驱动背光（未示出）。背光170的光源和背光驱动器分别对应于背光提供装置300的光源320和背光驱动器330，并且因此，将不提供进一步的解释。The
背光控制器180控制背光170。背光控制器180通过控制背光170与多个内容视图被显示在面板140上的操作联锁来提供与每个内容视图的图像帧的亮度属性信息相对应的背光。也就是说，背光控制器180控制背光170与每个内容视图同步地提供背光，该背光对应于每个内容视图的图像帧的亮度属性信息。The
此外，背光控制器180可以使用每个图像帧的亮度属性信息确定多个内容视图中的每一个的占空比，并根据所确定的占空比控制背光170施加驱动信号。In addition, the
虽然在图6中未示出，但是背光控制器180可以不仅控制背光170还控制显示装置100的总体操作。具体地说，背光控制器180可以控制多个接收器110-1、110-2、……、110-n、多个信号处理器120-1、120-2、……、120-n、多路复用器190、面板140、数据划分器150、多个图像分析器160-1、160-2、……、160-n、以及背光170中的每一个以执行相应的操作。Although not shown in FIG. 6 , the
背光控制器180对应于背光提供装置300的控制器140，并且因此，将不提供进一步的解释。The
在上述描述中，检测关于多个内容视图中的每一个的亮度属性信息并且提供与对每个内容视图的每个图像帧相对应的背光。然而，可以考虑到其他相邻内容视图的图像帧的影响来提供背光。例如，如果在生成驱动信号的过程中，相邻内容视图的占空比的差异大于预设值，则所确定的占空比被改变，并且可以通过根据所改变的占空比生成驱动信号来提供背光。In the above description, brightness attribute information on each of a plurality of content views is detected and a backlight corresponding to each image frame for each content view is provided. However, the backlight may be provided in consideration of the influence of image frames of other adjacent content views. For example, if in the process of generating the driving signal, the difference between the duty ratios of adjacent content views is greater than a preset value, the determined duty ratio is changed, and the driving signal can be generated by generating the driving signal according to the changed duty ratio. Backlighting is provided.
在已经参考图8解释的显示装置100中，背光提供装置300接收由数据划分器150对于每个内容视图多路复用和划分的图像帧。然而，背光提供装置300可以直接从多个信号处理器120-1、120-2、……、120-n接收图像帧，并且在这种情况下，数据划分器150可以被省略。此外，多个图像分析器160-1、160-2、……、160-n中的每一个可以包括在多个信号处理器120-1、120-2、……、120-n中以执行相应的功能，或者多个信号处理器120-1、120-2、……、120-n可以执行相应的功能。In the
图9是示出根据示范性实施例的用于控制显示装置的方法的流程图。FIG. 9 is a flowchart illustrating a method for controlling a display device according to an exemplary embodiment.
根据图9，显示方法包括接收多个内容中的每一个（S910）。所接收的内容中的每一个被处理以组成图像帧（S920）。具体地说，组成图像帧的操作可以包括解码包括在所接收的内容中的图像数据以及转换图像数据的帧速率。已经参考图3和图4解释了用于组成图像帧的具体方法，并且因此，将不提供进一步的描述。According to FIG. 9 , the display method includes receiving each of a plurality of contents ( S910 ). Each of the received contents is processed to compose an image frame (S920). In particular, composing an image frame may include decoding image data included in received content and converting a frame rate of the image data. A specific method for composing an image frame has already been explained with reference to FIGS. 3 and 4 , and thus, no further description will be provided.
随后，每个内容的组成的图像帧被组合和显示（S930）。Subsequently, the composed image frames of each content are combined and displayed (S930).
因此，多个接收的内容被分别进行信号处理，并且因此，在信号处理期间受到其他内容的影响微乎其微，使得能够执行最佳的信号处理。Accordingly, a plurality of received contents are separately signal-processed, and thus are little affected by other contents during signal processing, enabling optimal signal processing to be performed.
图10是示出根据示范性实施例的背光提供装置的控制方法的流程图。FIG. 10 is a flowchart illustrating a control method of a backlight providing device according to an exemplary embodiment.
根据图10，根据示范性实施例的背光提供方法包括检测包括在每个内容视图中的图像帧的亮度属性信息（S1010）。具体地说，如果输入由图像帧单元组合的多个内容，则对于每个内容视图划分每个内容的图像帧，并且检测包括在每个内容视图中的图像帧的亮度属性信息。随后，对于每个内容视图，提供对应于每个图像帧的亮度属性信息的背光（S1020）。这里，提供背光的操作（S1020）包括使用每个图像帧的亮度属性信息确定多个内容视图中的每一个的占空比、生成具有所确定的占空比的驱动信号、并且通过向光源施加驱动信号来提供背光。According to FIG. 10 , the backlight providing method according to an exemplary embodiment includes detecting brightness attribute information of an image frame included in each content view ( S1010 ). Specifically, if a plurality of contents combined by image frame unit is input, image frames of each content are divided for each content view, and brightness attribute information of the image frames included in each content view is detected. Subsequently, for each content view, a backlight corresponding to brightness attribute information of each image frame is provided ( S1020 ). Here, the operation of providing the backlight (S1020) includes determining a duty ratio of each of the plurality of content views using brightness attribute information of each image frame, generating a driving signal having the determined duty ratio, and applying Drive signal to provide backlight.
亮度属性信息可以是构成图像帧的像素的平均亮度值。同时，如上所述，亮度属性信息并不限于平均亮度值，而可以是各种值，诸如每个像素的亮度值当中的最大值、最小值、中间值、以及模式。The luminance attribute information may be an average luminance value of pixels constituting the image frame. Meanwhile, as described above, the luminance attribute information is not limited to an average luminance value, but may be various values such as a maximum value, a minimum value, an intermediate value, and a mode among luminance values of each pixel.
用于执行根据各种示范性实施例的方法的一个或多个程序可以存储在各种类型的记录介质中。One or more programs for performing methods according to various exemplary embodiments may be stored in various types of recording media.
具体地说，用于执行上述方法的程序代码可以存储在各种类型的非易失性记录介质中，诸如闪存、只读存储器（ROM）、可擦除可编程ROM(EPROM）、电可擦除可编程ROM（EEPROM）、硬盘、可移动盘、存储卡、USB存储器、以及CD-ROM。Specifically, the program codes for performing the above methods can be stored in various types of non-volatile recording media, such as flash memory, read-only memory (ROM), erasable programmable ROM (EPROM), electrically erasable Except programmable ROM (EEPROM), hard disk, removable disk, memory card, USB memory, and CD-ROM.
虽然已经示出和描述了本发明概念的一些示范性实施例，本领域技术人员将理解，可以在示范性实施例中进行修改而不脱离本发明概念的原理和精神，本发明的概念的范围定义在权利要求及其等同物中。While a few exemplary embodiments of the inventive concepts have been shown and described, those skilled in the art will appreciate that modifications may be made in the exemplary embodiments without departing from the principles and spirit of the inventive concepts and the scope of the inventive concepts as defined in the claims and their equivalents.
Claims (12)
Translated fromChineseApplications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0145289 | 2011-12-28 | ||
| KR20110145289 | 2011-12-28 | ||
| KR10-2011-0147327 | 2011-12-30 | ||
| KR20110147327 | 2011-12-30 | ||
| KR10-2012-0041488 | 2012-04-20 | ||
| KR1020120041488AKR20130076668A (en) | 2011-12-28 | 2012-04-20 | Back light providing apparatus, display apparatus and controlling method thereof |
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| CN103188455Atrue CN103188455A (en) | 2013-07-03 |
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| CN2012105797730APendingCN103188455A (en) | 2011-12-28 | 2012-12-27 | Backlight providing apparatus, display apparatus and controlling method thereof |
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| Country | Link |
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| US (1) | US20130169698A1 (en) |
| EP (1) | EP2610848A3 (en) |
| CN (1) | CN103188455A (en) |
Cited By (3)
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| CN104980782A (en)* | 2014-04-07 | 2015-10-14 | Lg电子株式会社 | Image Display Apparatus And Operation Method Thereof |
| CN114189687A (en)* | 2021-10-18 | 2022-03-15 | 江苏集萃智能集成电路设计技术研究所有限公司 | A display overdrive controller |
| CN114255682A (en)* | 2021-12-06 | 2022-03-29 | 四川长虹电器股份有限公司 | Detection device and method for regional dimming function |
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| KR102245366B1 (en) | 2014-10-27 | 2021-04-28 | 엘지전자 주식회사 | Digital device and method for controlling the same |
| JP6359990B2 (en)* | 2015-02-24 | 2018-07-18 | 株式会社ジャパンディスプレイ | Display device and display method |
| CN115695769A (en) | 2018-03-09 | 2023-02-03 | 马克斯-普朗克科学促进学会 | System for displaying information to a user |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2610848A2 (en) | 2013-07-03 |
| EP2610848A3 (en) | 2014-02-19 |
| US20130169698A1 (en) | 2013-07-04 |
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